SIEB & MEYER 21.60 Spindle Servo Motor

Module Feature

SIEB & MEYER 21.60 is a permanent magnet synchronous spindle servo motor. It features high rotational speed, fast dynamic response and stable torque output. Equipped with built-in high-resolution position feedback encoder. Optimized for milling, drilling and routing machining processes. Matches SIEB & MEYER FC series spindle drive modules. Widely used in CNC machining centers, semiconductor and PCB processing equipment.

Working principle

Three-phase variable-frequency AC power from spindle drive generates rotating magnetic field inside stator windings. The magnetic field drives rotor to rotate and provides high-speed mechanical power. Integrated encoder continuously feeds back speed and angular position signal to drive unit, to realize closed-loop speed and spindle orientation control.

Onboard components

Permanent magnet rotor, stator winding assembly, high resolution rotary encoder, precision contact bearings, motor housing, power connector, encoder feedback connector, shaft sealing assembly.

LED indicators

No onboard LED indicators, fault information is displayed on spindle drive unit.

Hardware self-diagnosis

Visual inspection of motor housing, shaft and connectors; winding resistance and insulation resistance measurement; encoder signal test; check bearing running noise and shaft runout.

Programming software

SIEB & MEYER commissioning software for spindle motor parameter setup, auto-tuning and fault diagnosis.

Electrical & Process Parameters

Model: 21.60 Motor type: Permanent magnet synchronous spindle motor Control mode: Speed / Position / Orientation control Cooling: Liquid cooling or forced air cooling Feedback: Built-in rotary encoder Mounting: Flange mounting

Mechanical & Structure

Mounting: Flange mounting Protection class: IP54

Environmental

Operating temperature: 0℃ ~ +40℃ Ambient humidity: 5~95% non-condensing Certification: CE compliant Status: SIEB & MEYER high speed spindle servo motor

System compatibility

Compatible with SIEB & MEYER FC series spindle drive modules and rack power supply, forms complete high-performance CNC spindle drive system.

Function

21.60 spindle servo motor manufactured by SIEB & MEYER. It converts electric energy into high-speed rotary mechanical power for material cutting and machining. Overload, overheating, encoder failure or winding insulation breakdown will trigger drive alarm and stop operation. It is the high-speed power execution unit for SIEB & MEYER CNC spindle system.

Installation

Follow lockout/tagout safety procedure before installation. Cut off all drive power completely. Mount motor via flange and couple with tool holder or spindle coupling. Connect motor power cable and encoder feedback cable to SIEB & MEYER spindle drive. Configure spindle parameters and run auto-tuning through SIEB & MEYER commissioning software, test spindle rotation before formal machining.

Interface

Motor power connector, encoder feedback connector, housing ground terminal of 21.60.

Diagnostic

Motor no rotation: No drive power, wrong wiring or encoder fault. Overload alarm: Mechanical jam, excessive cutting load or bearing damage. Encoder fault: Damaged encoder, loose feedback cable or wrong parameter setting. Motor overheat: Continuous heavy load or insufficient cooling capacity. Abnormal noise: Bearing wear, misalignment or mechanical resonance.

Product Brief

21.60 SIEB & MEYER permanent magnet synchronous spindle servo motor,flange mount,with integrated rotary encoder,matching SIEB & MEYER FC series spindle drives,for CNC and semiconductor high speed machining spindle.